Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual jogador tem o Oakland Athletics?
 ###Tabelas: CREATE TABLE first_round_selections (first_round_selections_id AUTO_INCREMENT PRIMARY KEY, Pick INT, Player VARCHAR, Team VARCHAR, Position VARCHAR, Hometown/School VARCHAR) CREATE TABLE nfl_championships (nfl_championships_id AUTO_INCREMENT PRIMARY KEY, Game VARCHAR, Date VARCHAR, Referee VARCHAR, Umpire VARCHAR, Head Linesman VARCHAR, Line Judge VARCHAR, Field Judge VARCHAR, Back Judge VARCHAR) CREATE TABLE ultra-lightweight_manx_grand_prix_revised_result (ultra-lightweight_manx_grand_prix_revised_result_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Rider VARCHAR, Team VARCHAR, Speed VARCHAR, Time VARCHAR) CREATE TABLE ultra_deep_water (ultra_deep_water_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Type VARCHAR, Entered service VARCHAR, Water depth VARCHAR, Location VARCHAR, Customer VARCHAR) CREATE TABLE most_densely_populated_islands_over_1000_people_per_km² (most_densely_populated_islands_over_1000_people_per_km²_id AUTO_INCREMENT PRIMARY KEY, Island VARCHAR, Country VARCHAR, Population VARCHAR, Area km² VARCHAR, Density (per km²) VARCHAR)  
SELECT Player FROM first_round_selections WHERE Team = oakland athletics